JP3854581B2

JP3854581B2 - Long material polishing equipment

Info

Publication number: JP3854581B2
Application number: JP2003016264A
Authority: JP
Inventors: 文弘岡
Original assignee: 豊研磨工業株式会社
Priority date: 2003-01-24
Filing date: 2003-01-24
Publication date: 2006-12-06
Anticipated expiration: 2023-01-24
Also published as: JP2004223668A

Description

【０００１】
【発明の属する技術分野】
この発明は、各種長尺物の表面全長をサンドペーパを用いたエンドレス研磨帯で研磨仕上げするための長尺物の研磨装置に関する。
【０００２】
【従来の技術】
例えば、構造物の構築に用いる型鋼は、出荷時や表面の塗装処理に際して、その表面を研磨仕上げを施し、表面に光沢を与えたり錆等の付着物を除去する必要がある。
【０００３】
従来、型鋼のような長尺物の外面を研磨する方法は、工具としてグラインダを用い、このグラインダの回転軸に粗粒の研磨材を表面に保持した研磨輪を取り付け、回転させた研磨輪で長尺物の外面を研磨するようにしている。
【０００４】
【発明が解決しようとする課題】
ところで、上記のようなグラインダによる研磨は、手作業になるため、作業能率が極めて悪く、長尺物の研磨に時間がかかるので研磨コストが高くつくと共に、研磨面の仕上がりが作業者の技術によつてバラツキが発生し、全長を均一に仕上げるのが困難であるという問題がある。
【０００５】
また、Ｈ型鋼やチャンネル材のように、一面側又は両面が溝形になっている断面形状の場合、この溝形の対向する内面を研磨するには、グラインダによる研磨では非常に行いにくい作業となる。
【０００６】
そこで、この発明の課題は、長尺物の研磨が能率よく行えると同時に、全長を均一に仕上げることができ、しかも、Ｈ型鋼やチャンネル材のような長尺物の溝形の対向する内面を効率よく研磨することができる長尺物の研磨方法と研磨装置を提供することにある。
【０００７】
【課題を解決するための手段】
上記のような課題を解決するため、この発明は、被研磨物の載置固定台と、この載置固定台の上部に位置し、被研磨物の研磨面に対して直線走行部分が接近離反動可能となるエンドレス研磨帯と、同じく載置固定台の上部に位置し、被研磨物の研磨面に対する上下の接近離反動と被研磨物の長さ方向への移動が可能となる押さえ部材とからなり、上記エンドレス研磨帯は、被研磨物に平行する直線走行部分が被研磨物の長さ方向に走行するようプーリ間に張設され、かつ、下降位置でこの直線走行部分が被研磨物の研磨面に対して対面するように配置され、上記押さえ部材が、下降位置で研磨帯の走行する直線走行部分を研磨面に押し付けることができるようになっている長尺物の研磨装置において、前記エンドレス研磨帯を、その直線走行部分を上下及び前後に移動させることができるように配置し、このエンドレス研磨帯の後方位置に、このエンドレス研磨帯の直線走行部分と平行するガイド軸を、前記直線走行部分と一体に上下及び前後に移動し、その軸心を中心に回転可能となるように配置し、このガイド軸に移動ケースをガイド軸の長さ方向に移動自在となるよう取り付け、前記移動ケースに、直線走行部分よりも上方の位置でこの移動ケースから前方に突出し、ガイド軸の軸心を中心に移動ケースを回動させるためのレバーハンドルと、直線走行部分よりも上方の位置で移動ケースから前方に突出する突軸を設け、前記突軸に上端部を固定したアームの下端にローラを用いた前記押さえ部材を直線走行部分の長さ方向に転動可能に取り付けた構成を採用したものである。
【０００９】
上記被研磨物の載置固定台は、ベース上に設けたレールに沿って前後に移動可能となり、長尺の被研磨物をその全長にわたって支持することができる長さの移動台車に形成され、上面には載置した被研磨物を固定するための手段が設けられている。
【００１０】
上記載置固定台の後方上部で両端の位置にシリンダで上下動する昇降台が配置され、一方昇降台上にモータで駆動される駆動プーリと他方昇降台上にアイドラプーリを、それぞれ前後に位置調整可能に取り付け、上記駆動プーリとアイドラプーリ間の上方位置に、上下動可能で常時上昇位置への移動性が付与されたテンションプーリを配置し、外面が研磨面となるエンドレス研磨帯は、駆動プーリとアイドラプーリ及びテンションプーリの外周にわたって巻回し、テンションプーリで緊張状態にすると共に、駆動プーリとアイドラプーリ間が、被研磨物と平行する直線走行部分となる。
【００１１】
上記両昇降台間の上部には、被研磨物と平行するガイド軸がその軸心を中心に回転可能に架設され、このガイド軸に長さ方向への移動が自在となるよう取り付けたスライダーに、前方に突出するレバーハンドルと、前面で下部の位置にローラを用いた押さえ部材が取り付けられ、押さえ部材はエンドレス研磨帯の直線走行部分の上部に位置している。
【００１２】
載置固定台の被研磨物を研磨位置に停止させた状態で、駆動プーリとアイドラプーリの下降及び前後移動を行うことで、エンドレス研磨帯の直線走行部分を被研磨物の研磨面に重なり状の配置とすることができ、エンドレス研磨帯を走行させた状態で、直線走行部分を押さえ部材で押さえ込みながら、研磨面の長さ方向に移動させると、エンドレス研磨帯で研磨面の全長を研磨することができる。
【００１３】
【発明の実施の形態】
以下、この発明の実施の形態を図示例と共に説明する。
【００１４】
図示のように、研磨装置１は、長尺の被研磨物Ａを水平に支持する載置固定台２と、この載置固定台２の上部に配置され、被研磨物Ａの研磨面に対して上下及び前後に接近離反動可能となるエンドレス研磨帯３と、同じく載置固定台２の上部に位置し、被研磨物Ａの研磨面に対する上下の接近離反動と被研磨物Ａの長さ方向への移動が可能となる押さえ部材４とを備えている。
【００１５】
上記載置固定台２は、被研磨物Ａの全長が載るような長さの横長で、ベース５上に設けた複数のレール６に沿って車輪７で前後に移動可能となり、その上面には載置した被研磨物Ａを固定するための手段である押さえ金具８が設けられている。
【００１６】
上記載置固定台２の後方上部で両端の位置に、シリンダ９で上下動する昇降台１０、１１が配置され、各昇降台１０、１１の上面には、手動操作による送りねじやシリンダを用いた移動操作機構１２で前後に移動可能となる可動台１３が載置され、上記一方昇降台１０の可動台１３上にモータ１４で駆動される駆動プーリ１５と、他方昇降台１１の可動台１３上にアイドラプーリ１６がそれぞれ前面側に位置するよう取り付けられている。
【００１７】
上記駆動プーリ１５とアイドラプーリ１６間の後方位置に、ベース５に対して固定となる支柱ブラケット１７が立設され、この支柱ブラケット１７の先端上部に、テンションプーリ１８が取り付けられている。
【００１８】
このテンションプーリ１８は、支柱ブラケット１７上に軸受１９で枢支した支点軸２０を支点とする揺動杆２１の一端側に回転可能に取り付け、揺動杆２１の他端に設けたウエイト２２の重量により、上下動可能で常時上昇位置への移動性が付与され、外面が研磨材面となるエンドレス研磨帯３は、所定の幅を有する長尺の研磨帯をエンドレスにして形成され、図３のように、このエンドレス研磨帯３を駆動プーリ１５とアイドラプーリ１６及びテンションプーリ１８の外周にわたって巻回し、テンションプーリ１８で緊張状態にすると共に、駆動プーリ１５とアイドラプーリ１６の間が、被研磨物Ａよりも長く被研磨物Ａと平行する直線走行部分３ａとなり、この直線走行部分３ａは下面が研磨材面になる。
【００１９】
上記駆動プーリ１５とアイドラプーリ１６は、シリンダ９の伸縮による上下動と、移動操作機構１２による前後動とが可能になり、駆動プーリ１５とアイドラプーリ１６の上下動によるエンドレス研磨帯Ａの過度の緊張はテンションプーリ１８の下降動によって回避し、また、エンドレス研磨帯３の弛みはテンションプーリ１８の上昇動によって吸収することができる。
【００２０】
上記両昇降台１０、１１の可動台１３上にそれぞれ軸受２３が固定され、両昇降台１０、１１間の上部には、両端の円軸部２４が軸受２３で支持され、被研磨物Ａと平行する配置となるＨ型鋼を用いたガイド軸２５がその軸心を中心に回転可能に架設され、このガイド軸２５にローラ式の移動台車２６で長さ方向への移動が自在となるよう取り付けた移動ケース２７に、上面から前方に突出するレバーハンドル２８と、前面から前方に突出する突軸２９とが設けられ、突軸２９に上端部を外嵌固定したアーム３０の下端に、ローラを用いた押さえ部材４が被研磨物Ａの長さ方向に沿って転動可能に取り付けられている。
【００２１】
上記押さえ部材４は、ガイド軸２５の軸心を中心にして上下に揺動可能となり、下降動させることで、エンドレス研磨帯３の直線走行部分３ａの上部に位置することになる。
【００２２】
この発明の長尺物の研磨装置は、上記のような構成であり、次に、この研磨装置を用いた長尺物の研磨方法を説明する。
【００２３】
図２と図４のように、両昇降台１０、１１が上昇すると共に可動台１３が前進位置に停止し、エンドレス研磨帯３の直線走行部分３ａが上昇と前進位置にあり、押さえ部材４も直線走行部分３ａの上に位置させた状態で、ステンレスや鋼製であるＨ型鋼のような長尺の被研磨物Ａ（以下Ｈ型鋼という場合もある）を、Ｈ型鋼の溝部分が前後の向きになるよう載置固定台２上へ水平に載置して押さえ金具８で定位置に固定し、この載置固定台２を後退動させてエンドレス研磨帯３の直線走行部分３ａよりも後方の研磨位置に待機させる。
【００２４】
次に、両昇降台１０、１１を下降させた後、可動台１３を後退させると、図５のように、エンドレス研磨帯３の直線走行部分３ａは、被研磨物ＡであるＨ型鋼の前面の溝部分に進入し、予め被研磨物Ａの一端側寄りの位置に待機させておいた移動ケース２７の押さえ部材４もこの溝部分に進入する。
【００２５】
この状態で、駆動プーリ１５とアイドラプーリ１６及びテンションプーリ１８は、側面から見て同一鉛直面に沿った配置となり、緊張するエンドレス研磨帯３の回転走行が支障なく行える状態になるので、モータ１４を起動してエンドレス研磨帯３を回転走行させると、直線走行部分３ａは被研磨物Ａの長さ方向に沿って走行する。
【００２６】
上記の状態で、移動ケース２７に設けたレバーハンドル２８を握って押し下げると、ガイド軸２５の回転で押さえ部材４が下降し、図６のように、押さえ部材４がエンドレス研磨帯３の直線走行部分３ａの一部をＨ型鋼Ａの溝部分の下面に押し付けることになる。
【００２７】
エンドレス研磨帯３の直線走行部分３ａは、Ｈ型鋼Ａの長さ方向に走行しているので、溝部分の下面に押さえ部材４で押し付けられると、研磨面に対して直線走行部分３ａが摺動することで、外周面に設けた研磨材により溝部分の下面を研磨することになり、このような押さえ部材４による直線走行部分３ａの押し付け状態を維持しながら、レバーハンドル２８を介して移動ケース２７をＨ型鋼Ａの他端側に向けて移動させると、押さえ部材４による直線走行部分３ａの押し付け位置がＨ型鋼Ａの長さ方向に変移していき、これにより、溝部分の下面側全長を連続して研磨することができる。
【００２８】
押さえ部材４がＨ型鋼Ａの他端側に到達すると、溝部分の下面側全長の研磨が完了し、レバーハンドル２８による押さえ部材４の押し下げを解くと共に、モータ１４への通電を切ってエンドレス研磨帯３の回転走行を停止させ、この後、両昇降台１０、１１を上昇させると共に、可動台１３を前進させると、図４のように、エンドレス研磨帯３の直線走行部分３ａと押さえ部材４がＨ型鋼Ａの溝部分から抜けて、上方に待機する位相になる。
【００２９】
次に、載置固定台２を前進位置に引き出し、この前進位置で押さえ金具８を解いて、Ｈ型鋼Ａを上下反転もしくは前後の向きを変えて再度押さえ金具８で固定し、この後、載置固定台２を後退位置に移動させた状態で、上記と同様の工程を繰り返すことにより、前面側に位置する溝部分の下面側全長を連続して研磨する。
【００３０】
上記のように、Ｈ型鋼Ａの溝部分の下面側全長を研磨するごとに、エンドレス研磨帯３の直線走行部分３ａと押さえ部材４の前後及び上下動と、載置固定台２の前後動及びＨ型鋼Ａの位相変えを行うことにより、Ｈ型鋼Ａにおける両側溝部分の合計四面の研磨が行えることになる。
【００３１】
なお、図示の場合、被研磨物ＡはＨ型鋼を例示したが、これに限定されるものではなく、チャンネルやアングルのような型鋼の研磨が同様に行えることになる。
【００３２】
また、被研磨物Ａの長さ方向への押さえ部材４の移動は、ねじ式やエンドレス走行体による電動により、自動的に行うようにしてもよい。
【００３３】
【発明の効果】
以上のように、この発明によると、外面が研磨材面となるエンドレス研磨帯の直線走行部分を固定配置した被研磨物の研磨面に臨ませ、上記研磨面に臨む直線走行部分を被研磨物の長さ方向に走行させ、上記研磨帯の走行する直線走行部分を押さえ部材で研磨面に押し付けながら、この押さえ部材を被研磨物の長さ方向に移動させることで研磨を行うようにしたので、押さえ部材で研磨帯を研磨面に押し付けて被研磨物の長さ方向に移動させるだけで、研磨帯で研磨面の全長を効率よく研磨することができ、しかも、研磨面の全長を均一に研磨仕上げすることができることになる。
【００３４】
また、エンドレス研磨帯の直線走行部分とガイド軸を一体に上下及び前後に移動するようにし、軸心を中心に回転可能となるガイド軸に移動ケースをガイド軸の長さ方向に移動自在となるよう取り付け、前記移動ケースに、レバーハンドルと突軸を設け、この突軸に上端部を固定したアームの下端にローラを用いた前記押さえ部材を直線走行部分の長さ方向に転動可能に取り付けたので、Ｈ型鋼やチャンネルの溝部分に直線走行部分と押さえ部材を挿入することで、この溝部分の内面を研磨加工することができる。
【図面の簡単な説明】
【図１】長尺物の研磨装置において、被研磨物を研磨位置にセットした研磨開始状態の正面図
【図２】長尺物の研磨装置において、エンドレス研磨帯を上昇位置にした状態の正面図
【図３】長尺物の研磨装置の要部構造を示す斜視図
【図４】長尺物の研磨装置において、被研磨物を研磨位置にセットし、エンドレス研磨帯を上昇位置にした状態を示す拡大した縦断側面図
【図５】長尺物の研磨装置において、被研磨物を研磨位置にセットし、エンドレス研磨帯を下降位置にした状態を示す拡大した縦断側面図
【図６】長尺物の研磨装置において、被研磨物を研磨位置にセットし、エンドレス研磨帯を下降位置にして研磨を行っている状態を示す拡大した縦断側面図
【図７】長尺物の研磨装置において、被研磨物を研磨位置にセットし、エンドレス研磨帯を下降位置にした状態を示す移動ケース部分の拡大した縦断側面図
【符号の説明】
１長尺物の研磨装置
２載置固定台
３エンドレス研磨帯
３ａ直線走行部分
４押さえ部材
５ベース
６レール
７車輪
８押さえ金具
９シリンダ
１０昇降台
１１昇降台
１２移動操作機構
１３可動台
１４モータ
１５駆動プーリ
１６アイドラプーリ
１７支柱ブラケット
１８テンションプーリ
１９軸受
２０支点軸
２１揺動杆
２２ウエイト
２３軸受
２４円軸部
２５ガイド軸
２６移動台車
２７移動ケース
２８レバーハンドル
２９突軸
３０アーム[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a long object polishing apparatus for polishing the entire surface length of various long objects with an endless polishing band using sandpaper.
[0002]
[Prior art]
For example, a steel mold used for construction of a structure needs to have a polished surface at the time of shipment or at the time of surface coating treatment to give the surface gloss or remove deposits such as rust.
[0003]
Conventionally, a method of polishing an outer surface of a long object such as a steel mold is performed by using a grinder as a tool, attaching a grinding wheel holding a coarse abrasive on the surface of the grinder's rotating shaft, and rotating the grinding wheel. The outer surface of the long object is polished.
[0004]
[Problems to be solved by the invention]
By the way, since the grinding by the grinder as described above is a manual work, the work efficiency is extremely poor, and it takes time to polish a long object, so that the polishing cost is high, and the finish of the polished surface is an operator's technique. Therefore, there is a problem that variations occur and it is difficult to finish the entire length uniformly.
[0005]
Also, in the case of a cross-sectional shape in which one side or both sides are grooved, such as H-shaped steel or channel material, it is very difficult to grind with the grinder to grind the inner surfaces facing each other. Become.
[0006]
Therefore, the object of the present invention is to efficiently polish a long object and at the same time finish the entire length uniformly. Moreover, the inner surface of the groove shape of a long object such as an H-shaped steel or a channel material can be formed. An object of the present invention is to provide a method and apparatus for polishing a long object that can be efficiently polished.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention is provided with a mounting base for a workpiece and an upper portion of the mounting base, and a linear traveling portion is close to and away from the polishing surface of the polishing target. An endless polishing band that can be recoiled, and a pressing member that is also located at the upper part of the mounting and fixing base, and that can move up and down and move in the length direction of the object to be polished with respect to the polishing surface of the object to be polished The endless polishing band is stretched between pulleys so that a linear traveling portion parallel to the object to be polished travels in the length direction of the object to be polished, and the linear traveling portion is to be polished at the lowered position. In a polishing apparatus for a long object, which is arranged so as to face the polishing surface, and the pressing member is capable of pressing a linear traveling portion on which the polishing band travels at a lowered position against the polishing surface. Travel straight through the endless polishing strip The guide shaft parallel to the straight running part of the endless polishing band is installed at the rear position of the endless polishing band, and the guide shaft parallel to the linear running part is integrated with the linear running part. It is arranged so that it can rotate around its axis, and a moving case is attached to this guide shaft so as to be movable in the length direction of the guide shaft. A lever handle that protrudes forward from the moving case at an upper position and rotates the moving case around the axis of the guide shaft, and a projecting shaft that protrudes forward from the moving case at a position higher than the linear travel portion the provided, but where the configuration mounted rollably to the length direction of the linear running portion of the pressing member using a roller to the lower end of the arm to secure the upper portion to the projecting shaft
[0009]
The mounting and fixing base for the object to be polished is movable back and forth along a rail provided on the base, and is formed into a moving carriage having a length capable of supporting a long object to be polished over its entire length, Means for fixing the object to be polished placed thereon is provided on the upper surface.
[0010]
A lifting platform that moves up and down with cylinders is arranged at both ends of the rear upper part of the mounting table, and a drive pulley driven by a motor on one lifting platform and an idler pulley on the other lifting platform are respectively positioned in the front and rear. A tension pulley that can be moved up and down and is always movable to the ascending position is placed at an upper position between the drive pulley and idler pulley. The pulley, the idler pulley, and the tension pulley are wound around the outer periphery of the pulley, and are tensioned by the tension pulley, and the space between the drive pulley and the idler pulley is a linear traveling portion parallel to the object to be polished.
[0011]
A guide shaft parallel to the object to be polished is mounted on the upper part between the two lifting platforms so as to be rotatable about the axis, and a slider attached to the guide shaft so as to be movable in the length direction. A lever handle that protrudes forward and a pressing member using a roller at a lower position on the front surface are attached, and the pressing member is positioned above the linear running portion of the endless polishing band.
[0012]
The drive pulley and idler pulley are lowered and moved back and forth while the workpiece on the mounting base is stopped at the polishing position, so that the linearly running portion of the endless polishing band overlaps with the polishing surface of the workpiece. In the state where the endless polishing band is running, the entire length of the polishing surface is polished by the endless polishing band by moving in the length direction of the polishing surface while pressing the straight running portion with the pressing member. be able to.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
As shown in the figure, the polishing apparatus 1 includes a mounting fixture 2 that horizontally supports a long workpiece A, and an upper portion of the mounting fixture 2, with respect to the polishing surface of the workpiece A. The endless polishing band 3 that can be moved up and down and back and forth, and the upper part of the mounting and fixing base 2, and the length of the workpiece A and the length and length of the workpiece A to be moved up and down with respect to the polishing surface of the workpiece A And a pressing member 4 that can move in the direction.
[0015]
The mounting table 2 is horizontally long so that the entire length of the workpiece A is placed, and can be moved back and forth by a wheel 7 along a plurality of rails 6 provided on the base 5. A holding metal fitting 8 is provided as a means for fixing the mounted workpiece A.
[0016]
Lifting bases 10 and 11 that are moved up and down by a cylinder 9 are disposed at both ends of the rear upper part of the mounting base 2 described above, and a manually operated feed screw or cylinder is used on the upper surface of each lifting base 10 or 11. A movable table 13 that can be moved back and forth by the moving operation mechanism 12 is placed. The drive pulley 15 that is driven by the motor 14 on the movable table 13 of the one lifting table 10 and the movable table 13 of the other lifting table 11. On the upper side, idler pulleys 16 are attached so as to be positioned on the front side.
[0017]
A column bracket 17 that is fixed to the base 5 is erected at a rear position between the drive pulley 15 and the idler pulley 16, and a tension pulley 18 is attached to the top end of the column bracket 17.
[0018]
This tension pulley 18 is rotatably attached to one end side of a swing rod 21 having a fulcrum shaft 20 pivotally supported by a bearing 19 on a support bracket 17 and a weight 22 provided at the other end of the swing rod 21. The endless polishing band 3 which can move up and down by the weight and is always provided with a mobility to the raised position and whose outer surface is the abrasive surface is formed with an endless polishing band having a predetermined width as shown in FIG. As shown, the endless polishing band 3 is wound around the outer periphery of the drive pulley 15, the idler pulley 16, and the tension pulley 18, and is tensioned by the tension pulley 18, and the space between the drive pulley 15 and the idler pulley 16 is polished. The straight traveling portion 3a is longer than the object A and parallel to the workpiece A, and the lower surface of the linear traveling portion 3a is the abrasive surface.
[0019]
The drive pulley 15 and the idler pulley 16 can be moved up and down by the expansion and contraction of the cylinder 9 and moved back and forth by the moving operation mechanism 12, and the endless polishing band A is excessively moved by the vertical movement of the drive pulley 15 and the idler pulley 16. Tension can be avoided by the downward movement of the tension pulley 18, and the slack of the endless polishing band 3 can be absorbed by the upward movement of the tension pulley 18.
[0020]
Bearings 23 are respectively fixed on the movable bases 13 of the lifting platforms 10 and 11, and circular shaft portions 24 at both ends are supported by the bearings 23 at the upper part between the lifting platforms 10 and 11. A guide shaft 25 using H-shaped steel, which is arranged in parallel, is installed so as to be rotatable about its axis, and is attached to the guide shaft 25 so that it can be moved in the length direction by a roller-type movable carriage 26. The movable case 27 is provided with a lever handle 28 that protrudes forward from the upper surface and a protruding shaft 29 that protrudes forward from the front surface. The used pressing member 4 is mounted so as to roll along the length direction of the workpiece A.
[0021]
The pressing member 4 can swing up and down around the axis of the guide shaft 25, and is moved downward to be positioned above the linear running portion 3a of the endless polishing band 3.
[0022]
The long object polishing apparatus of the present invention is configured as described above. Next, a long object polishing method using the polishing apparatus will be described.
[0023]
As shown in FIGS. 2 and 4, both the lifting platforms 10 and 11 are raised and the movable platform 13 is stopped at the advanced position, the linear traveling portion 3 a of the endless polishing band 3 is at the elevated and advanced position, and the pressing member 4 is also In a state of being positioned on the straight running portion 3a, a long object A (hereinafter sometimes referred to as H-shaped steel) such as H-shaped steel made of stainless steel or steel has a groove portion of the H-shaped steel in front and rear. It is placed horizontally on the mounting fixture 2 so as to be oriented and fixed at a fixed position by the presser bracket 8, and the mounting fixture 2 is moved backward to be behind the straight running portion 3a of the endless polishing band 3. Wait at the polishing position.
[0024]
Next, after lowering both the lifts 10 and 11, when the movable table 13 is retracted, the straight traveling portion 3a of the endless polishing band 3 is the front surface of the H-shaped steel that is the object A to be polished as shown in FIG. The pressing member 4 of the moving case 27 that has entered the groove portion and has been waiting in advance at a position near one end of the workpiece A also enters the groove portion.
[0025]
In this state, the drive pulley 15, the idler pulley 16 and the tension pulley 18 are arranged along the same vertical plane when viewed from the side, and the endless polishing band 3 that is tensioned can be rotated without any trouble. When the endless polishing belt 3 is rotated and traveled, the straight traveling portion 3a travels along the length direction of the workpiece A.
[0026]
In this state, when the lever handle 28 provided on the moving case 27 is grasped and pushed down, the holding member 4 is lowered by the rotation of the guide shaft 25, and the holding member 4 is linearly driven by the endless polishing band 3 as shown in FIG. A part of the portion 3a is pressed against the lower surface of the groove portion of the H-shaped steel A.
[0027]
Since the linear running portion 3a of the endless polishing band 3 runs in the length direction of the H-shaped steel A, when the pressing member 4 is pressed against the lower surface of the groove portion, the linear running portion 3a slides against the polished surface. Thus, the lower surface of the groove portion is polished by the abrasive provided on the outer peripheral surface, and the moving case is provided via the lever handle 28 while maintaining the pressing state of the linear traveling portion 3a by the pressing member 4 as described above. When 27 is moved toward the other end side of the H-shaped steel A, the pressing position of the linear traveling portion 3a by the pressing member 4 is shifted in the length direction of the H-shaped steel A, whereby the lower surface side full length of the groove portion is changed. Can be continuously polished.
[0028]
When the pressing member 4 reaches the other end of the H-shaped steel A, the polishing of the entire length of the lower surface side of the groove portion is completed, the pressing of the pressing member 4 by the lever handle 28 is released, and the motor 14 is turned off to endless polishing. When the traveling of the belt 3 is stopped and then both the elevators 10 and 11 are raised and the movable platform 13 is advanced, the linearly traveling portion 3a and the pressing member 4 of the endless polishing belt 3 are moved as shown in FIG. Comes out of the groove portion of the H-shaped steel A and enters a phase of waiting upward.
[0029]
Next, the mounting fixture 2 is pulled out to the forward position, and the presser bracket 8 is released at the advanced position, and the H-shaped steel A is turned upside down or changed back and forth and fixed again with the presser bracket 8. By repeating the same process as described above with the stationary table 2 moved to the retracted position, the entire length of the lower surface side of the groove portion located on the front surface side is continuously polished.
[0030]
As described above, every time the entire length of the lower surface side of the groove portion of the H-shaped steel A is polished, the linear travel portion 3a of the endless polishing band 3 and the pressing member 4 are moved back and forth, and the back and forth movement of the mounting fixture 2 and By changing the phase of the H-shaped steel A, it is possible to polish a total of four sides of both side groove portions in the H-shaped steel A.
[0031]
In the case shown in the drawing, the object A to be polished is an H-shaped steel, but the present invention is not limited to this, and it is possible to similarly polish the shaped steel such as a channel or an angle.
[0032]
Moreover, you may make it perform the movement of the holding | suppressing member 4 to the length direction of the to-be-polished object A automatically by the electric drive by a screw type or an endless traveling body.
[0033]
【The invention's effect】
As described above, according to the present invention, the linearly running portion of the endless polishing band whose outer surface is the abrasive surface is faced to the polishing surface of the workpiece to be fixedly fixed, and the linearly running portion that faces the polishing surface is the workpiece. Because the polishing is performed by moving the pressing member in the length direction of the object to be polished while pressing the linear running portion where the polishing belt travels against the polishing surface with the pressing member. By simply pressing the polishing band against the polishing surface with the pressing member and moving it in the length direction of the object to be polished, the entire length of the polishing surface can be efficiently polished with the polishing band, and the entire length of the polishing surface can be made uniform. It can be polished.
[0034]
In addition, the linear running portion of the endless polishing band and the guide shaft are moved up and down and back and forth, so that the moving case can be moved in the length direction of the guide shaft to the guide shaft that can rotate around the shaft center. A lever handle and a projecting shaft are provided on the moving case, and the pressing member using a roller is attached to the lower end of an arm whose upper end is fixed to the projecting shaft so as to be able to roll in the length direction of the linear traveling portion. Therefore, the inner surface of the groove portion can be polished by inserting the straight running portion and the pressing member into the groove portion of the H-shaped steel or channel .
[Brief description of the drawings]
FIG. 1 is a front view of a long object polishing apparatus in a polishing start state in which an object to be polished is set at a polishing position. FIG. 2 is a front view of a long object polishing apparatus in which an endless polishing band is in an ascending position. FIG. 3 is a perspective view showing the structure of a main part of a long object polishing apparatus. FIG. 4 is a state in which an object to be polished is set in a polishing position and an endless polishing band is in an ascending position in the long object polishing apparatus. Fig. 5 is an enlarged vertical side view showing a state in which a workpiece is set at a polishing position and an endless polishing band is set at a lowered position in a long object polishing apparatus. FIG. 7 is an enlarged longitudinal sectional side view showing a state in which the object to be polished is set at the polishing position and the endless polishing band is in the lowered position in the scale polishing apparatus. Set the workpiece to the polishing position and end Enlarged vertical sectional side view of a mobile housing part showing a state in which the scan polishing zone in the lowered position [Description of symbols]
DESCRIPTION OF SYMBOLS 1 Long object polishing apparatus 2 Mounting fixture 3 Endless polishing zone 3a Straight running part 4 Holding member 5 Base 6 Rail 7 Wheel 8 Holding metal 9 Cylinder 10 Lifting table 11 Lifting table 12 Moving operation mechanism 13 Movable table 14 Motor 15 Drive pulley 16 Idler pulley 17 Strut bracket 18 Tension pulley 19 Bearing 20 Support shaft 21 Oscillating rod 22 Weight 23 Bearing 24 Circular shaft portion 25 Guide shaft 26 Moving carriage 27 Moving case 28 Lever handle 29 Projection shaft 30 Arm

Claims

被研磨物の載置固定台と、この載置固定台の上部に位置し、被研磨物の研磨面に対して直線走行部分が接近離反動可能となるエンドレス研磨帯と、同じく載置固定台の上部に位置し、被研磨物の研磨面に対する上下の接近離反動と被研磨物の長さ方向への移動が可能となる押さえ部材とからなり、上記エンドレス研磨帯は、被研磨物に平行する直線走行部分が被研磨物の長さ方向に走行するようプーリ間に張設され、かつ、下降位置でこの直線走行部分が被研磨物の研磨面に対して対面するように配置され、上記押さえ部材が、下降位置で研磨帯の走行する直線走行部分を研磨面に押し付けることができるようになっている長尺物の研磨装置において、
前記エンドレス研磨帯（３）を、その直線走行部分（３ａ）を上下及び前後に移動させることができるように配置し、このエンドレス研磨帯（３）の後方位置に、このエンドレス研磨帯（３）の直線走行部分（３ａ）と平行するガイド軸（２５）を、前記直線走行部分（３ａ）と一体に上下及び前後に移動し、その軸心を中心に回転可能となるように配置し、このガイド軸（２５）に移動ケース（２７）をガイド軸（２５）の長さ方向に移動自在となるよう取り付け、前記移動ケース（２７）に、直線走行部分（３ａ）よりも上方の位置でこの移動ケース（２７）から前方に突出し、ガイド軸（２５）の軸心を中心に移動ケース（２７）を回動させるためのレバーハンドル（２８）と、直線走行部分（３ａ）よりも上方の位置で移動ケース（２７）から前方に突出する突軸（２９）を設け、前記突軸（２９）に上端部を固定したアーム（３０）の下端にローラを用いた前記押さえ部材（４）を直線走行部分（３ａ）の長さ方向に転動可能に取り付けたことを特徴とする長尺物の研磨装置。A mounting and fixing base for the object to be polished, an endless polishing band located on the top of the mounting and fixing base and allowing the linear running portion to move toward and away from the polishing surface of the object to be polished, and the same mounting and fixing base The endless polishing band is parallel to the object to be polished, and includes a pressing member that can move the object to be polished up and down with respect to the polishing surface and move in the length direction of the object to be polished. The linear running part is stretched between the pulleys so as to run in the length direction of the object to be polished, and the linear running part is arranged so as to face the polishing surface of the object to be polished in the lowered position, In the polishing apparatus for long objects, the pressing member can press the linear traveling part where the polishing band travels at the lowered position against the polishing surface.
The endless polishing band (3) is arranged so that the linear running portion (3a) can be moved up and down and back and forth, and the endless polishing band (3) is located at the rear of the endless polishing band (3). The guide shaft (25) parallel to the linear traveling portion (3a) is moved up and down and front and rear integrally with the linear traveling portion (3a), and is arranged so as to be rotatable around the axis. The moving case (27) is attached to the guide shaft (25) so as to be movable in the length direction of the guide shaft (25), and is attached to the moving case (27) at a position above the straight traveling portion (3a). A lever handle (28) that protrudes forward from the moving case (27) and rotates the moving case (27) about the axis of the guide shaft (25), and a position above the linear travel portion (3a) Move case with ( 7) A projecting shaft (29) projecting forward from the projecting shaft (29) is provided, and the pressing member (4) using a roller at the lower end of the arm (30) having the upper end fixed to the projecting shaft (29) is connected to the linear travel portion (3a). A long object polishing apparatus characterized by being mounted so as to be able to roll in the length direction.